在这项研究中，她和同事们根据抓到的虱卵数量估算虱子滋生的程度。他们认为，虱卵越多，说明产卵的虱子越多。

In this study, she and her colleagues estimated the degree of louse infestation by the number of nits picked. The more nits, they calculated, the more lice-producing nits.

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科学家们昨天宣布他们发明了一种类似吹风机的装置能够在半小时内清除虱子和虱卵。

Researchers said yesterday that they had developed a blow-dryer-like device that appears to get rid of lice and their eggs in a single half-hour session.

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虱病虱子的寄生侵扰，尤指毛虱；虱病。

Infestation with lice especially crab lice; pediculosis.

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